Stovepipe.



C. LEALI.

STOVEPIPE.

APPLICATION FILED Nov.26. 191s.

Patented Mar. 14, 1916.

Hour: 1

witnesses g CHARLES LEALI, OF KINGSLAND, ARKANSAS. I

Specification of Letters Patent.

Patented Mar. 14, 1916;

Application filed November 26, 1913. Serial No. 803,215.

To all whom it may concern:

Be it known that I, CHARLES LEAH, a citizen of the United States,residing at Kingsland, in the county of Cleveland and State of Arkansas,have invented certain new and useful Improvements in Stovepipes, ofwhich the following is a specification.

My invention relates to stove pipes, and more particularly to stove pipesections that are adapted to telescope each other and has for its objectto provide a stove pipe section blank provided adjacent eachlongitudinal edge with a series of holes one of said series of holescarrying rivets securely held therein whereby stove pipe section blanksso constructed may be shipped with their rivets,

' and adapted to be'formed into sections with their edgessecured'together by said rivets.

Other objects and advantages, such as simplicity, cheapness',durability, efficiency, and the general improvement of the art, will bebrought out in the following specification and illustrated in theaccompanying drawings, in which:

Figure 1 is a side elevation, partly in section, of two telescoped pipesections, Fig. 2 is a view of one section in its preliminary or flatsheet stage, Fig. 3 is a detail cross sectional view showing thesecuring means and.

the edges of the flat sheet spaced apart prior to their interlocking,Fig. 4 is a similar view showing the edges overlapped and both engagingthe fastening means, and Fig. 5 is a similar View through the seambefore the head of the rivet has been flattened.

Referring more particularly to the drawings, the numeral 1 designates asection of pipe provided adjacent one end with an annular rib 2. Thesection 1 is formed preferably from a sheet 3 of the usual material,which is provided along two of its opposite edges with holes 4 and 5,formed preferably by merely punching in such a manner as to form burs 6and 7 around the holes 4 and 5.

In the formation of a pipe section, I use a novel form of fasteningdevice 8 which is substantially a rivet like lug provided with a head 9disposed interiorly of the pipe section, and a stem 10 tapered at itsouter end, as shown at 11, for facilitating its entry into the hole andfurther provided with reduced shank 12 adjacent the head'9. The rivetlike lugs 8 are inserted through the holes 5 with the heads 9 engagingone side of the sheet 3. I Although the holes 5 are of slightly lessdiameter than the maximum ,diameter of the stem 10, there is sufficientspringiness in the material to allow the rivet like lugs 8 to passthrough, whereupon the material will spring back into place with theburs 7 engaging the reduced shank 12, as shown in Fig. 3. The materialof the pipe is then hammered or the rivet like lugs are forced againstthe material to flatten out the burs 7 so that the metal in the burswill fit closely around the reduced shanks 12. This will hold the rivetlike lu'gs firmly in place and prevent them from being dislodged whilethe pipe is being shipped. In order to finally assemble the pipe theopposite edge of the sheet 3 is brought over, forming a cylindricalshell, and the rivet like lugs 8 are passed through the holes 4 in amanner similar to their passage through the holes 5, whereupon the burs6will also engage the reduced shanks 12, as shown in Fig. 4. In order tomake this connection permanent, it is then merely necessary to hammerthe material around the rivet like lugs so as to flatten out the burs 6,thus forcing the material firmly andpermanently around the reducedshanks 12, as shown in Fig. 5. It will be noted that theholes 4 need nothave a bur, as the rivet like lugs themselves could be flattened outafter passing them through the holes 4 instead of flattening the burs 6.

Referring especially to Fig. 1 of the drawings, the numeral 13designates a pipe section formed in a similar manner except that it isprovided with a plurality of annular grooves 14 and is further providedwith a releasable locking device adjacent its lower end 15 in place ofone of the rivet like lugs 8. This releasable locking device comprises atongue 16 stamped out of the material adjacent one edge of the sectionand a tion having a series of holes adjacent each of its longitudinaledges, and rivets having reduced shanks located in one of said series ofholes and held therein by the gripping edges of said holes, whereby theedges of the blank are adapted to be brought together and riveted toform a pipe section.

In testimony whereof I hereto afilx my signature in the presence of twoWitnesses.

CHARLES LEALI.

Witnesses R. M. DOSTER, J. A. MCCOY.

